Various chapters on International Contract and Company Law (incl. conflict of law for arbitration agreements in: Anhang Art. 4 Rom I-VO at no: 5), in: Prütting/Wegen/Weinreich (Eds.), BGB-Kommentar (commentary on German Civil Code), 8th edition 2013

Chapter on Arbitration (24 pages) in: Internationales Privat- und Zivilverfahrensrecht (compendium on conflict of law and international litigation and arbitration), by Brödermann/Rosengarten, 6th edition 2012